firebase-development:add-feature

What problem does it solve?

This sub-skill streamlines adding new features to existing Firebase projects while enforcing TDD, secure rules, and emulator verification.

Core Features & Use Cases

• TDD-driven development: Write tests first and drive implementation for Cloud Functions, Firestore, and API endpoints.
• Security-first: Guidance on Firestore rules and secure access patterns to prevent misconfigurations.
• Emulator-focused workflow: Validate new features locally before deployment using Firebase emulators.
• Use Case: Example: Add a new HTTP endpoint backed by Firestore data with test coverage and rules verified in emulator.

Quick Start

1. Say "add function" or "create endpoint" to begin feature work.
2. Create a failing unit test describing the feature.
3. Implement the feature code and make tests pass.
4. Update security rules if needed and run emulators to verify end-to-end.
5. Run the full test suite and prepare for deployment.